/*
 * 红桃视频内容站基础样式
 * 视觉方向：温润、克制、清晰、成熟、轻影音感。
 */
:root{
    --brand:#B93A4A;
    --brand-soft:#D9828D;
    --ink:#2B2528;
    --text:#332D2F;
    --muted:#756B6E;
    --paper:#FFF9F7;
    --soft:#F6ECEB;
    --accent:#E45B4F;
    --line:#EAD8D6;
    --white:#FFFFFF;
    --shadow:0 18px 45px rgba(68,38,43,.10);
    --radius:22px;
    --shell:min(1180px,calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
.shell{width:var(--shell);margin-inline:auto}.narrow{max-width:860px}
.skip-link{position:absolute;left:16px;top:-80px;background:var(--ink);color:#fff;padding:10px 14px;z-index:1000;border-radius:10px}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,249,247,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(234,216,214,.85)}
.header-inner{min-height:76px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:1.12rem;white-space:nowrap}.brand img{width:44px;height:44px;object-fit:contain}.primary-nav{display:flex;align-items:center;gap:6px;margin-left:auto}.primary-nav a{padding:8px 10px;color:var(--muted);font-size:.94rem;border-radius:10px}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--soft);color:var(--brand)}
.search-open,.menu-toggle{border:1px solid var(--line);background:var(--white);color:var(--text);padding:9px 13px;border-radius:12px}.menu-toggle{display:none}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:150;background:rgba(43,37,40,.55);display:grid;place-items:start center;padding:11vh 20px 20px}.search-panel{position:relative;width:min(680px,100%);background:var(--paper);border-radius:26px;padding:34px;box-shadow:var(--shadow)}.search-close{position:absolute;right:18px;top:14px;width:40px;height:40px;border:0;background:transparent;font-size:1.8rem;color:var(--muted)}
.search-form label{display:block;margin-bottom:8px;color:var(--muted)}.search-row{display:flex;gap:10px}.search-row input{min-width:0;flex:1;border:1px solid var(--line);background:#fff;padding:13px 14px;border-radius:12px;color:var(--text)}.search-row button{border:0;background:var(--brand);color:#fff;padding:12px 20px;border-radius:12px;font-weight:700}
.main-content{min-height:60vh}.eyebrow{margin:0 0 12px;color:var(--brand);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.lede{font-size:1.16rem;color:var(--muted);max-width:760px}.section{padding:84px 0}.section-heading{margin-bottom:34px}.section-heading h2,.section h2{margin:.2em 0 .45em;color:var(--ink);font-size:clamp(1.65rem,3.3vw,2.55rem);line-height:1.24}.section-heading>p:last-child{max-width:720px;color:var(--muted)}
.home-hero{padding:74px 0 56px;background:linear-gradient(180deg,#fff 0%,var(--paper) 100%)}.hero-grid{display:grid;grid-template-columns:1.07fr .93fr;align-items:center;gap:60px}.hero-copy h1{margin:0 0 20px;font-size:clamp(2.6rem,5.7vw,5.15rem);line-height:1.03;color:var(--ink);letter-spacing:-.04em}.hero-copy .lede{font-size:1.18rem}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:11px 18px;border-radius:14px;font-weight:750;border:1px solid transparent}.button.primary{background:var(--brand);color:#fff}.button.primary:hover{background:#A83140}.button.ghost{background:transparent;border-color:var(--line);color:var(--ink)}.button.ghost:hover{background:var(--soft)}.hero-note{margin-top:20px;color:var(--muted);font-size:.94rem}.hero-note strong{color:var(--text)}
.hero-media{margin:0;background:var(--soft);border-radius:30px;overflow:hidden;box-shadow:var(--shadow)}.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}.hero-media.compact{max-width:520px}.section-intro{padding-top:42px}.section-intro p:last-child{font-size:1.08rem;color:var(--muted)}
.split-heading{display:flex;justify-content:space-between;gap:30px;align-items:end}.split-heading>p{max-width:390px;margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 28px rgba(73,43,48,.06)}.feature-card img{width:100%;aspect-ratio:3/2;object-fit:cover}.feature-body{padding:24px}.feature-body h3{margin:0 0 8px;font-size:1.28rem;color:var(--ink)}.feature-body p{margin:0 0 18px;color:var(--muted)}.feature-body a,.text-cta{display:inline-flex;gap:8px;align-items:center;color:var(--brand);font-weight:750}
.band-section{background:var(--ink);color:#fff}.band-grid{display:grid;grid-template-columns:1fr .9fr;gap:60px;align-items:center}.band-section h2{color:#fff}.band-section p{color:#E9DEE0}.band-section .eyebrow{color:var(--brand-soft)}.band-section .text-cta{color:#FFD6D9}.band-grid img{width:100%;border-radius:24px;aspect-ratio:8/5;object-fit:cover}
.two-col-editorial{display:grid;grid-template-columns:1.08fr .72fr;gap:70px;align-items:center}.stack-links{display:grid;gap:12px;margin-top:28px}.stack-links a{display:flex;justify-content:space-between;gap:20px;padding:17px 18px;border-top:1px solid var(--line)}.stack-links a:last-child{border-bottom:1px solid var(--line)}.stack-links strong{color:var(--ink)}.stack-links span{color:var(--muted);max-width:350px;text-align:right}.editorial-media{margin:0}.editorial-media img{width:100%;border-radius:28px;aspect-ratio:4/5;object-fit:cover}
.soft-section{background:var(--soft)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.steps article{padding:28px;border-radius:18px;background:rgba(255,255,255,.62);border:1px solid rgba(217,130,141,.25)}.steps span{font-weight:850;color:var(--brand-soft);font-size:1.6rem}.steps h3{margin:8px 0;color:var(--ink)}.steps p{margin:0;color:var(--muted)}.center-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:32px}
.guide-list{border-top:1px solid var(--line)}.guide-list article{display:grid;grid-template-columns:70px 1fr auto;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}.guide-index{font-size:1.6rem;color:var(--brand-soft);font-weight:800}.guide-list h3{margin:0 0 4px;color:var(--ink)}.guide-list p{margin:0;color:var(--muted)}.guide-list a{color:var(--brand);font-weight:700}
.topic-feature{padding-top:28px}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:30px;padding:26px}.topic-grid figure{margin:0}.topic-grid img{border-radius:22px;aspect-ratio:11/8;object-fit:cover}.topic-grid>div{padding:20px 28px 20px 0}.topic-grid p:not(.eyebrow){color:var(--muted)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-grid details,.faq-page-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:4px 20px}.faq-grid summary,.faq-page-list summary{padding:16px 28px 16px 0;cursor:pointer;font-weight:750;color:var(--ink)}.faq-grid details p,.faq-page-list details p{margin:0 0 18px;color:var(--muted)}.about-strip{background:var(--brand);color:#fff}.about-strip h2{color:#fff}.about-strip p{color:#FFE7E8}.about-strip-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:50px;align-items:center}.about-strip .eyebrow{color:#FFD6D9}.strip-links{display:grid;gap:10px}.strip-links a{background:rgba(255,255,255,.12);padding:14px 16px;border-radius:12px;font-weight:700}
.breadcrumb{padding:22px 0 0}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0;font-size:.9rem;color:var(--muted)}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--brand-soft)}.breadcrumb a:hover{color:var(--brand)}
.inner-hero{padding:46px 0 64px}.inner-hero-grid{display:grid;grid-template-columns:1.16fr .84fr;gap:50px;align-items:center}.inner-hero h1{margin:0 0 16px;color:var(--ink);font-size:clamp(2.35rem,4.7vw,4.4rem);line-height:1.08;letter-spacing:-.03em}.inner-hero .hero-media{justify-self:end;width:100%}
.article-shell{padding:14px 0 90px}.reading-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:54px;align-items:start}.article-content{min-width:0}.content-block{padding:30px 0;border-top:1px solid var(--line)}.content-block:first-child{border-top:0;padding-top:0}.content-block.soft{padding:30px;border:1px solid var(--line);background:#fff;border-radius:20px;margin:16px 0}.content-block h2{font-size:clamp(1.5rem,2.8vw,2.2rem);margin:0 0 16px;color:var(--ink)}.content-block p{font-size:1.05rem;margin:0 0 16px;color:#4C4346}.check-list{list-style:none;padding:0;margin:22px 0;display:grid;gap:10px}.check-list li{position:relative;padding-left:30px}.check-list li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:850}.text-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.text-links a{display:inline-flex;gap:10px;align-items:center;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 13px;color:var(--brand);font-weight:700}.text-links.wide{display:grid;grid-template-columns:repeat(2,1fr)}.text-links.wide a{justify-content:space-between}.article-aside{position:sticky;top:104px}.aside-card{padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff}.aside-card h2{font-size:1.25rem;margin:0 0 16px}.aside-card>a{display:block;padding:11px 0;border-top:1px solid var(--line);color:var(--muted)}.aside-card>a:hover{color:var(--brand)}
.faq-page-list{display:grid;gap:12px;max-width:900px}.faq-page-list details{padding-inline:24px}.faq-page-list summary{font-size:1.06rem}.search-page{padding-top:70px}.search-page h1{font-size:clamp(2.1rem,4vw,3.4rem);color:var(--ink)}.page-search{margin:24px 0 36px}.result-count{color:var(--muted)}.search-results{display:grid;gap:16px}.search-results article{padding:24px;border:1px solid var(--line);background:#fff;border-radius:18px}.search-results h2{font-size:1.35rem;margin:0 0 8px}.search-results p{color:var(--muted);margin:0 0 12px}.empty-state{padding:34px;border:1px solid var(--line);background:#fff;border-radius:18px}.empty-state h2{font-size:1.5rem}.empty-state a{color:var(--brand);font-weight:750}.error-page{text-align:center}.error-code{font-size:clamp(5rem,16vw,10rem);line-height:.8;color:var(--brand-soft);font-weight:900;margin:40px 0 20px}.error-page .hero-actions{justify-content:center}.error-page .text-links{margin-top:30px}
.site-footer{background:#221D1F;color:#D9CED0;padding:62px 0 26px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px}.footer-grid h2{color:#fff;font-size:1.05rem;margin:0 0 14px}.footer-grid p{margin:0;max-width:470px;color:#BFB2B5}.footer-grid a{display:block;color:#D7CACE;padding:5px 0}.footer-grid a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid #453B3F;margin-top:40px;padding-top:22px;font-size:.9rem;color:#AFA1A4}.back-top{color:#fff}
@media (max-width:1024px){
    .primary-nav{position:absolute;left:20px;right:20px;top:70px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;box-shadow:var(--shadow);display:none;flex-direction:column;align-items:stretch}.primary-nav[data-open="true"]{display:flex}.primary-nav a{padding:10px 12px}.menu-toggle{display:inline-flex;margin-left:auto}.search-open{margin-left:0}.hero-grid,.inner-hero-grid,.band-grid,.two-col-editorial,.topic-grid{grid-template-columns:1fr}.hero-grid{gap:36px}.home-hero{padding-top:52px}.hero-media{max-width:760px}.inner-hero .hero-media{justify-self:start}.feature-grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr}.reading-grid{grid-template-columns:1fr}.article-aside{position:static}.footer-grid{grid-template-columns:1fr 1fr}.about-strip-grid{grid-template-columns:1fr}.topic-grid>div{padding:10px}.two-col-editorial{gap:35px}.editorial-media{max-width:620px}}
@media (max-width:768px){
    :root{--shell:min(100% - 28px,1180px)}.header-inner{min-height:68px;gap:10px}.brand span{font-size:1rem}.brand img{width:38px;height:38px}.search-open{font-size:.86rem;padding:8px 10px}.section{padding:64px 0}.home-hero{padding:44px 0}.hero-copy h1{font-size:clamp(2.35rem,11vw,3.7rem)}.feature-grid,.faq-grid,.footer-grid,.text-links.wide{grid-template-columns:1fr}.split-heading{display:block}.split-heading>p{margin-top:12px}.guide-list article{grid-template-columns:48px 1fr}.guide-list article>a{grid-column:2}.stack-links a{display:block}.stack-links span{display:block;text-align:left;margin-top:4px}.search-panel{padding:26px 22px}.search-row{flex-direction:column}.about-strip{padding:58px 0}.footer-bottom{display:block}.footer-bottom .back-top{display:inline-block;margin-top:8px}.content-block.soft{padding:24px 20px;margin-inline:-4px}}
@media (max-width:600px){
    .brand span{display:none}.hero-actions .button,.center-actions .button{width:100%}.section-heading h2,.section h2{font-size:1.85rem}.inner-hero h1{font-size:2.35rem}.lede{font-size:1.04rem}.feature-grid{grid-template-columns:1fr}.topic-grid{padding:16px}.content-block p{font-size:1rem}.footer-grid{gap:30px}.search-modal{padding-top:7vh}}
@media (max-width:375px){
    :root{--shell:min(100% - 20px,1180px)}.header-inner{gap:7px}.menu-toggle,.search-open{padding:7px 8px}.hero-copy h1{font-size:2.15rem}.home-hero{padding-top:34px}.section{padding:52px 0}.feature-body{padding:20px}.content-block.soft{padding:20px 16px}.search-panel{padding:24px 16px}}